γ辐照对掺杂铅受体杂质的Bi0.85Sb0.15固溶挤压样品电性能的影响

IF 0.9 4区 材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY
M. M. Tagiyev, I. A. Abdullayeva, G. D. Abdinova
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引用次数: 0

摘要

在~77 ~ 300 K范围内,研究了γ辐照对掺入0.001 ~ 0.05 % Pb的Bi0.85Sb0.15固溶体挤压样品电性能的影响。结果表明,辐照剂量为~1 Mrad的未掺杂材料会产生供体缺陷,导致载流子浓度n和电导率σ的增加。在含0.001 % Pb的材料中,辐射诱导的供体缺陷补偿了Pb受体中心,降低了σ。在% Pb含量≥0.005的材料中,传导电子被Pb受体中心补偿,因此伽马辐射产生的电子导致σ增大。电导率σ、热电功率α和霍尔系数RH对Pb含量和辐照剂量的依赖关系良好。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Effect of Gamma Irradiation on the Electrical Properties of Extruded Bi0.85Sb0.15 Solid Solution Samples Doped with Pb Acceptor Impurities

Effect of Gamma Irradiation on the Electrical Properties of Extruded Bi0.85Sb0.15 Solid Solution Samples Doped with Pb Acceptor Impurities

The effect of gamma irradiation on the electrical properties of extruded Bi0.85Sb0.15 solid solution samples doped with 0.001 to 0.05 at % Pb has been studied in the range ~77–300 K. The results suggest that irradiation of the undoped material to a gamma dose of ~1 Mrad produces donor defects and leads to an increase in carrier concentration n and electrical conductivity σ. The radiation-induced donor defects in the material containing 0.001 at % Pb compensate Pb acceptor centers, reducing σ. In the materials containing ≥0.005 at % Pb, conduction electrons are compensated by Pb acceptor centers, so electrons generated by gamma irradiation lead to an increase in σ. A good correlation is observed between the dependences of electrical conductivity σ, thermoelectric power α and Hall coefficient RH on Pb content and gamma irradiation dose.

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来源期刊
Inorganic Materials
Inorganic Materials 工程技术-材料科学:综合
CiteScore
1.40
自引率
25.00%
发文量
80
审稿时长
3-6 weeks
期刊介绍: Inorganic Materials is a journal that publishes reviews and original articles devoted to chemistry, physics, and applications of various inorganic materials including high-purity substances and materials. The journal discusses phase equilibria, including P–T–X diagrams, and the fundamentals of inorganic materials science, which determines preparatory conditions for compounds of various compositions with specified deviations from stoichiometry. Inorganic Materials is a multidisciplinary journal covering all classes of inorganic materials. The journal welcomes manuscripts from all countries in the English or Russian language.
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